I actually would have supported Prescott for that. It wasn't like a brawl in a pub, or beating up his wife like a cricketer or footballer does.
Unlike most senior politicians, soft Scottish-educated lawyers with multiple University degrees who've never done a hard day's graft in their lives, JP left school young, from a working class family, joined the merchant navy as a steward, worked and studied hard to better himself, and was charitably sponsored by his union, who could see he was intelligent and hard working, to go to college. When he was at sea he learned to box, and boxed for his ship in merchant navy tournaments. A lot of people sneer at him because he isn't a smooth talker. I think he's done well.
I have no problem that when someone came up behind him and assaulted him (hit him, with an egg in his fist) John didn't cower away and wait for his bodyguards to act. He thumped the bloke. Fair play, I say.
(For the benefit of our foreign readers, John Prescott is our Deputy Prime Minister. Put there because he has a lot of grass roots support, not because he's popular with all the party bosses. He is noted for being inarticulate and stumbling over his words. I would guess he is about 60 now.)